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Bulletin on solar and geomagnetic activity Solar activity report
Geophysical report
Sunspot regions
Coronal holes
Kp values
Solar flares
Radiation storms
Solar wind (Speed, Density), Interplanetary Magnetic Field (IMF) (Bt, Bz)
M flares, G2 geomagnetic storm watch
Our Sun has been moderately active the past few days! Sunspot region 2824 produced numerous C-class events and three M-class solar flares during the past few days. An M1.4 solar flare on Saturday, 22 May was the strongest solar flare it produced. A couple of these C and M-class solar flares were eruptive and produced coronal mass ejections which could have an earth-directed component.
Latest news
Wednesday, 14 May 2025
Another X-flare! Potent sunspot region 4087!
Tuesday, 13 May 2025
X1.1 solar flare from sunspot region 4086
Tuesday, 15 April 2025
CME arrival, G3 storm watch
Latest forum messages
Incoming & Unnumbered Active Regions 1905AR14097 1AR4087 214Growth of Cycle 25 900Upper atmosphere phenomena Red sprites and Blue jets 25
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Space weather facts
| Last X-flare | 2025/05/14 | X2.7 |
| Last M-flare | 2025/05/21 | M1.2 |
| Last geomagnetic storm | 2025/05/17 | Kp6+ (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2025 | 140.6 +6.4 |
| May 2025 | 69.6 -71 |
| Last 30 days | 85.3 -28.3 |